package com.lyfx.ly.config;

import com.alibaba.fastjson.support.spring.GenericFastJsonRedisSerializer;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author lsy
 * @create 2020-07-31-9:58
 */
@EnableConfigurationProperties(CacheProperties.class)
@Configuration
@EnableCaching
public class CacheConfig {
    /**
     *@Cacheable: 触发缓存填充。
     * @CacheEvict:  触发缓存逐出。
     * @CachePut: 在不干扰方法执行的情况下更新缓存。
     * @Caching: 重新组合要应用于方法的多个缓存操作。
     * @CacheConfig: 在类级别共享一些与缓存相关的公共设置。
     */
    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties){
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericFastJsonRedisSerializer()));
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        if(redisProperties.getTimeToLive() != null){
            config = config.entryTtl(redisProperties.getTimeToLive());
        }
        if(redisProperties.getKeyPrefix() != null){
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        if(!redisProperties.isCacheNullValues()){
            config = config.disableCachingNullValues();
        }
        if(!redisProperties.isUseKeyPrefix()){
            config = config.disableKeyPrefix();
        }
        return config;
    }
}
